SU657727A3 - Method of fighting undesirable plants - Google Patents

Description

(54) METHOD OF STRUGGLE AGAINST UNDESIRABLE PLANTS 0.1 - 15 kg / ha, iipe /, 0.2-6 kg / ha. Forms of application are usual: solutions, emulsions, pastes, powders. They are ready in the usual ways. The content of the active substance in the formulations is in the range of 0.1 to 95% by weight of 7 °, preferably 0.5 to 90% by weight. The compounds of formula (T) can be prepared by reacting the substituted anilides N-chloro-methyl-o-alkyl of ulphyl-glycolic acid with alcohol b. The reaction is carried out in the presence of an acid binding agent. Example: In a greenhouse, test vessels are filled with a clay-sand stream and sown with various seeds. then treated with the following compounds; N-ethoxymethyl-2,6-diethyl-o-methylsulfonyl-glycolic acid anilide (i anilide M-methoxymethyl-2,6 diethyl-0-methylsulfonyl-glycolic acid (JJ); anilide N-methoxy-2, b-diethyl O-chl methylsulfonyl-glycolic acid (IV) with the anilide M-methoxymethyl-2,6-diethyl-0-isop {X) pilsulfonyl-glycolic acid (V); anilide N-propoxymethyl-2,6-diethyl-O-methylsulfonyl-glycolic acid (Vi); anilide M-isopropoxymethyl-2,6-diethyl-O-methylsulfonyl-glycolic acid (LM); anilide N-methoxymethyl-2,0-dimethyl -o-methylsulfonyl-glycolic acid (Wl) :. anilide N-ethoxymethyl-2,6-dimethyl-O-methylsulfonyl-glycolic acid: you (ig.) ;. anilide K-propoxymethyl-2,6-dimethyl -o-methylsulfonyl-glycolic acid (X) .; anilide K-isopropoxymethyl-2,6-dimethyl-o-methylsulfonyl-glycolic acid (XI); anilide N-methoxymethyl-2-methyl-6-ethyl-O-methylsulfonyl-glycolic acid () P | ); 2-methyl-6-ethylanilide N-ethoxymethyl-O-methylsulfonyl-glycoic acid (Xjy); 2,6 diethyl anilide N-methoxymethyl-o-ethylsulfonyl-glycolic acid (XV 2-methyl-6-ethylanilide N-propoxymethyl-O-m et 11lsu.gt.4onyl-1-glycolic acid (Xyi); 2-methyl 11l-0-ethylanyl N -Isoyropoxymethyl o-methylsulfonyl-glycolic acid ((), 2.methyl-6-ethylancide N-isobutoxymethyl-1; methylsulfonyl-gl-1 -coloic acid (XV111): and N-isopropyl-cs-chloroacetate 1-iside m (I) and P-1 -2-Chloroacetate-2,6-diethylanilide as a comparative active principle. The amount used is 3 kg of active substance per hectare each time, dispersant After 1–4 weeks, it was updated that the active principles 1 –XJj had more herbicidal activity with the same tolerability by the culture plants than the active principles I and Xjn. The results of the α-experiments are given in Table. 1,2,3. Example 2. In a greenhouse, various plants with a height of 2 were treated with compounds J - n N -isopropyl-oC-chloroacetanilide (I) and N-methoxymethyl-2-chloroacetate-2,6-diethylanilide as a comparative active principle . The applied dose is 3 kg of active ingredient per 1 ha, dispersed or emulsified in 500 l of water / ha. After 3–4 weeks, it was established that the active principles 1 have a better herbicidal activity with better tolerance by the cultivated plants GEucine Mach, Gossupium htpsutum, than the deviating patchala D and xlTi. The results of the experiments are given in table. 4,5,6. Example 3. In the greenhouse, the test vessels are filled with clay-sandy soil and seeded with various seeds, then treated with compounds L The amount used is 1 kg / ha, dispersed or emulsified in 500 liters of water / ha. After 3-4 weeks, it was established that the active beginnings I-V have better herbicidal activity with the same tolerability by cultivated plants than the active beginnings VII and Vill.

The results of the experiments are given in table.7.

Example 4, In a greenhouse, various plants 3-18 cm in height are treated with active principles T-VIU. The amount used is 1 kg of active ingredient per 1 ha, dispersed or emulsified in 5OO l of water / ha.

After 3-4 weeks, it was found that the active onset of T -VI have better herbicidal activity with the same tolerability of cultivated plants than the comparative active onset of N / U and,

The results of the experiments are given in table.8.

Table

Useful plants:

О - without damage 1oo - full damage

Table 2

Continued table. 2

sorghum

hlosh atnik beet

genus plants: italian ryegrass, one year old, mjtlík, bovilidae, woodlouse, bristle, m

Useful plants:

rape

corn

sorghum

with

cotton

beetroot plants

1 tal nskiy ryegrass

year old

urchin

woodlouse

green bristle

m tlick

Continued tabl. 4

About About About About

LTD

About About About About

000

About About About About 20O

О 2О О

five

80

004О

7O

80

70

7О 60

0025 70 80 65 95 64

60З 6О 6О 70 65 6О 65

655О 6О 65 60 68

6ОЗО 65 65 64 7О 65

ОО6О 75 80 75 90

Table5

eleven

657727

Useful plants:

rape

with

corn

beetroot plants

ital nsky.raygras

English ryegrass

urchin

bristle

green bristle

m tlick

1ЧДДОЙ м price

12 t a b l u u G

Table 7

Claims (1)

Useful plants: Formula of the invention A method of controlling undesirable shadows by treating the soil or plants is a herbicide, characterized in that, in order to increase the efficiency of the method, compounds of the formula OC CHg-0-K 1OO where K a) are used as a herbicide alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl. aralkyl or b) the group-pj where R and R are alkyl, halogenalkyl or Shgkloalkyl radical; R, if R has the indicated in p. A value, means - CH OR where R is an alkyl group with 1 to 6 carbon atoms, alkoxyalkyl, haloalkyl, alkenyl, hapogenapenip, apkinip, cycloalkyl or heterocycloalkyl, or if R has the order in p. b values - alkyl, cycloalkyl, alkenyl, or Shgcloalkenyl radical, or, if necessary, substituted benzyl radical; X and Y is hydrogen, a substituent for alkyl, alkoxy, haloalkyl, or halogen, in an amount of 0.1 - 15: kg / ha, preferably 0.2 - G kg / ha.